Finding the Fourth Proportional to 145,661.13, 201,042.14 and 91,909.94
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Solution
The fourth proportional to 145,661.13, 201,042.14 and 91,909.94 is: 126,854.50
Step by Step Solution
- Step 1: Write the proportion equation
145,661.13 : 201,042.14 = 91,909.94 : x - Step 2: Convert to fraction form
145,661.13/201,042.14 = 91,909.94/x - Step 3: Cross multiply
145,661.13x = 201,042.14 × 91,909.94 - Step 4: Simplify right side
145,661.13x = 18,477,769,560.11 - Step 5: Solve for x
x = 18,477,769,560.11/145,661.13 - Step 6: Final answer
x = 126,854.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.